| 1 | package transferqueue; |
1 | package transferqueue; |
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2 | |
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3 | my @reserve = ( |
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4 | [ 1_000_000, 1], |
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5 | [ 10_000_000, 1], |
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6 | ); |
| 2 | |
7 | |
| 3 | sub new { |
8 | sub new { |
| 4 | my $class = shift; |
9 | my $class = shift; |
| 5 | bless { |
10 | bless { |
| 6 | slots => $_[0], |
11 | slots => $_[0], |
| 7 | lastspb => 0, |
12 | lastspb => 0, |
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13 | avgspb => 0, |
| 8 | }, $class; |
14 | }, $class; |
| 9 | } |
15 | } |
| 10 | |
16 | |
| 11 | sub start_transfer { |
17 | sub start_transfer { |
| 12 | my $self = shift; |
18 | my $self = shift; |
| 13 | my $size = $_[0]; |
19 | my $size = $_[0]; |
| 14 | |
20 | |
| 15 | my $trans = bless { |
21 | my $transfer = bless { |
| 16 | queue => $self, |
22 | queue => $self, |
| 17 | time => $::NOW, |
23 | time => $::NOW, |
| 18 | size => $size, |
24 | size => $size, |
| 19 | coro => $Coro::current, |
25 | coro => $Coro::current, |
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26 | started => 0, |
| 20 | }, transfer::; |
27 | }, transfer::; |
| 21 | |
28 | |
| 22 | push @{$self->{wait}}, $trans; |
29 | push @{$self->{wait}}, $transfer; |
| 23 | Scalar::Util::weaken($self->{wait}[-1]); |
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| 24 | |
30 | |
| 25 | $self->wake_next; |
31 | $self->wake_next; |
| 26 | |
32 | |
| 27 | $trans; |
33 | $transfer; |
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34 | } |
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35 | |
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36 | sub sort { |
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37 | my @queue = grep $_, @{$_[0]{wait}}; |
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38 | |
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39 | $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue; |
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40 | |
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41 | $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue]; |
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42 | |
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43 | Scalar::Util::weaken $_ for @{$_[0]{wait}}; |
| 28 | } |
44 | } |
| 29 | |
45 | |
| 30 | sub wake_next { |
46 | sub wake_next { |
| 31 | my $self = shift; |
47 | my $self = shift; |
| 32 | |
48 | |
| 33 | $self->sort; |
49 | $self->sort; |
| 34 | |
50 | |
| 35 | while($self->{slots} && @{$self->{wait}}) { |
51 | while (@{$self->{wait}}) { |
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52 | my $size = $self->{wait}[0]{size}; |
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53 | my $min = 0; |
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54 | for (@reserve) { |
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55 | last if $size <= $_->[0]; |
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56 | $min += $_->[1]; |
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57 | } |
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58 | last unless $self->{slots} > $min; |
| 36 | my $transfer = shift @{$self->{wait}}; |
59 | my $transfer = shift @{$self->{wait}}; |
| 37 | if ($transfer) { |
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| 38 | $self->{lastspb} = $transfer->{spb}; |
60 | $self->{lastspb} = $transfer->{spb}; |
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61 | $self->{avgspb} ||= $transfer->{spb}; |
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62 | $self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05; |
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63 | $self->{started}++; |
| 39 | $transfer->wake; |
64 | $transfer->wake; |
| 40 | last; |
65 | last; |
| 41 | } |
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| 42 | } |
66 | } |
| 43 | } |
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| 44 | |
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| 45 | sub sort { |
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| 46 | $_[0]{wait} = [ |
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| 47 | sort { $b->{spb} <=> $a->{spb} } |
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| 48 | grep { $_ && ($_->{spb} = ($::NOW-$_->{time})/($_->{size}||1)), $_ } |
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| 49 | @{$_[0]{wait}} |
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| 50 | ]; |
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| 51 | } |
67 | } |
| 52 | |
68 | |
| 53 | sub waiters { |
69 | sub waiters { |
| 54 | $_[0]->sort; |
70 | $_[0]->sort; |
| 55 | @{$_[0]{wait}}; |
71 | @{$_[0]{wait}}; |
